3results about How to "Simple insulation structure" patented technology

The utility model discloses a battery, which relates to the technical field of batteries and comprises a side frame, a fixing ring and an electrode assembly, the side frame is made of metal materials, the fixing ring is connected with the side frame and protrudes outwards from the side frame, and the fixing ring is provided with a through hole communicated with the inner side and the outer side of the side frame. The electrode assembly comprises the electrode column penetrating through the through hole and the annular insulating ring filled between the inner wall of the through hole and the electrode column, the insulating structure between the electrode column and the side frame is simpler, the number of parts is reduced, the cost is reduced, meanwhile, the part, located in the battery, of the electrode assembly is fewer, and the service life of the battery is prolonged. The occupation of the internal space of the battery is reduced, and the energy density of the battery is improved.

This utility model provides a prestressed concrete slab construction support, belonging to the field of building construction. Its technical solution includes a base and a support frame mounted on the base. The support frame includes a lower U-shaped support plate, with upper U-shaped support plates symmetrically arranged on the top of the side plates on both sides of the lower U-shaped support plate. A lower layer of transverse corrugated pipe is arranged in the lower U-shaped support plate, and upper layer of longitudinal corrugated pipe is arranged in the upper U-shaped support plates on both sides. The support frame includes an annular frame, with L-shaped support legs at the four corners of the annular frame. A protrusion is provided at the bottom of the lower U-shaped support plate, and the protrusion is located within the annular frame. The beneficial effects of this utility model are: by using an integrally molded plastic support frame, it can provide excellent insulation, preventing conductivity through the support frame, thus eliminating the need for separate grounding of the support frame. Simultaneously, it can separate the upper and lower corrugated pipes, allowing each pipe to be grounded independently, ensuring effective grounding.

The application belongs to the technical field of equipment insulation influence evaluation considering streamer discharge, and provides a streamer discharge simulation modeling method, system, medium and equipment of charge behavior under complex working condition coupling, which is based on the theory of shearing separation of double electric layer, and an oil-paper-interface multi-region charge dynamic transport simulation model is established by coupling oil flow convection term, shearing term and temperature effect; based on the established transport simulation model, the whole evolution process of streamer discharge from diffusion, longitudinal evolution to transverse migration under the coupling of electric field, fluid field and thermal field is simulated by combining the charge injection and extraction boundary conditions at the electrode, the charge density distribution and electric field strength distribution data in the streamer evolution process are obtained; the streamer evolution law is analyzed based on the charge density distribution and electric field strength distribution data, so as to evaluate the oil-paper insulation state or optimize the oil-paper insulation structure. The coupling effects of electric field, fluid field and thermal field are comprehensively considered, and the actual operating condition of the converter transformer is more accurately simulated.